Home / 178,911,381.60-268,367,072.40-76,685,752.80

Finding the Fourth Proportional to 178,911,381.60, 268,367,072.40 and 76,685,752.80

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Solution

The fourth proportional to 178,911,381.60, 268,367,072.40 and 76,685,752.80 is: 115,028,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,911,381.60 : 268,367,072.40 = 76,685,752.80 : x
  2. Step 2: Convert to fraction form
    178,911,381.60/268,367,072.40 = 76,685,752.80/x
  3. Step 3: Cross multiply
    178,911,381.60x = 268,367,072.40 × 76,685,752.80
  4. Step 4: Simplify right side
    178,911,381.60x = 20,579,930,973,726,104
  5. Step 5: Solve for x
    x = 20,579,930,973,726,104/178,911,381.60
  6. Step 6: Final answer
    x = 115,028,629.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.